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Flowchart of study objective and analytical considerations. sCAP, severe community-acquired pneumonia; ARDS, acute respiratory distress syndrome; ICU, intensive care unit; PTSD, post-traumatic stress disorder; CANTAB, Cambridge Neuropsychological Test Automated Battery; STROOP, Stroop Color and Word Test; HRQoL, health-related quality of life; SF-12, Medical Outcomes Study 12-Item Short Form; VVLT, Visual Verbal Learning Test.
